live in san francisco, anne macovec, kpix 5. >>> new video from contra costa. flames engulfed this home. cause of the fire is under investigation. >>> new at noon, the president of the university of california system is stepping down. janet napolitano announcing her resignation today at a uc regents meeting in los angeles. she was the first woman to lead the system in 2013. napolitano has been battling a reoccurrence of breast cancer. no word on a possible successor. >>> to the weather now, some of you may have woken up to rain showers on this wednesday. drivers taking the bay bridge had a soggy morning commute. look at that. the skies have some what cleared out as we take a live look from the san jose camera you can still see clouds there. meteorologist mary lee has a look at the conditions for us. mary. >> reporter: that's right, michelle. tracking the cold front that has been bringing scattered light showers to the bay area, and you can really see that line of showers. that is the actual cold front right now and the position of it on high def doppler, still